The bugs and ocean dwellers on Planet Terria mutated becoming stronger and increased their mental aptitude by 5000%. As their new intellect grew, so did their appetite for planet domination. They now feel that Terrians are their Public Enemy Number One. So, they developed a secret army and are now ready to eradicate the Terrians with all of their mutant force. You and your ship, the "Kai-jin" are the last hope for the Terrian Kind...